The redesign is in #ConfigMgr 1909 TP. Check it out.Glen Harrison commented
Has this feature definately been killed off by MS? There's a post on technet from a guy saying he has had to point his hosts towards the internet for updates over configmgr. Unfortunately doing that means any sccm update reports won't show full complaince across the estate. Big no no for us as we need to prove all servers are patched.